1: (3 7 13)

(0 8 6)(1 19 4)(2 17 16)(3 7 13)(5 11 9)(10 15 12)(14 20 18)

2: (0 8 6)

(0)(1 19 4)(2 17 16)(3 7 13)(5 11 9)(6)(8)(10 15 12)(14 20 18)

3: (3 7 13)

(0)(1 19 4)(2 17 16)(3)(5 11 9)(6)(7)(8)(10 15 12)(13)(14 20 18)

4: (1 19 4)

(0)(1)(2 17 16)(3)(4)(5 11 9)(6)(7)(8)(10 15 12)(13)(14 20 18)(19)